It’s time to rethink ‘one-size-fits-all’ approach to mask guidance, expert says, as Delta variant is spotted in every US state

With uneven vaccination rates across the US and a dangerous variant now spotted in all 50 states, a health expert is warning the federal government’s mask guidance should be more focused, instead of a “one-size-fits-all” approach.With uneven vaccination rates across the US and a dangerous variant now spotted in all 50 states, a health expert is warning the federal government’s mask guidance should be more focused, instead of a “one-size-fits-all” approach.